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PILE DRIVER. No. 300,407. Patented June 17, 1884.

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T. TANGNEY.

PILE DRIVER.

No. 300,407. .Patented June 17, 1884.

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T. TANGNEY.

PILE DRIVER. No. 300,407l Patented June 17, 1884.

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"ilaiirnn dra'rns Farmer @en THOMAS TANGEY, OF NEWT YORK, N. Y.

PILE-DRIVER.

yLPECfClidilON forming part of Letters Patent No. 300,4-07, dated Junei7, 188%.

Application filed January 25, 1583. (No model.) l

To @ZZ 11171/0711, t may concern:

Beit known that I, THOMAS Tanennv, of New York, in the county and Stateot' New York, have invented an Improved PileDriver, or' which thefollowing is a specification, rei'- crence being had to the accompanyingdrawings, in which- Figure l is a side view of my improved piledriver. 2is a plan view, partly in horizontal section, on the plane of the line cc, Fig. l. Fig. 3 is a detail vertical section on the plane of the linec It, Fig. 8. Fig. l is a detail vertical sectionv on the plane oftheline k 7s, Fig. S. Fig. 5 isa detail longitudinal section, and Fig.(i a detail cross-section, of part ofthe pusher for the catches,hereinafter described. Fig. 7 is avertical cross-section, on an enlargedscale, of the mechanism for engaging the hammer with the lifting-chains.Fig. 8 is a horizontal section on the plane of the line g q, Fig. 7.Fig. 9 is a detail side view or" one of the braces for holding thepileguides. Fig. l() is a horizontal section ofthe pile-driver takenbelow the hammer. Fig. 11 is a vertical crosssection and partial faceview of the pile-driver.

This invention relates to certain improvements in pile-drivers whereby,more particularly,the en gine employed for lifting and dropping thehammer can be kept in constant motion, and whereby the position of thepile with reference to the hammer can bc readily adj usted.

The invention consists of the new'combinations ol' parts, hereinafterdescribed and claimed.

ln the accompanying drawings, the letters A A represent the leaders orupright posts of a pile-driver, the same being placed on sills B, andbraced thereon bythe usual ladderbraee,v0, and further steadied bycross-braces D D, so as to constitute a rigid structure. Fach of theleaders or poles carries an endless chain, E, which is passed aroundchain-wheels a and Z1, that are respectively hung at or near the upperand lower ends oi" said leaders. The chain ior each leader runs alongthe inner iace thereof, by preference, and also along the outer face, asshown in Figs. l() and ll, the inner face of the leader being preferablygroovcd, asin Fig. l0, so that the chains may be kept out of the way ofthe traveling hammer in said grooves. By suitable machinery` the wheelsb Z1 or a a. ofthe two chains EE are revolved in such manner that alongthe inner face of each leader the chain pertaining thereto travelsupward, and along the outer face thereof it travels downward, asindicated by arrows in Fig-.11.

F is the hammer for driving the pile. This hamm er is, by short chains dd, suspended from a cross-beam, G, that is adapted to travel between thetwo leaders A A, and which in turn connects by stiff braces or posts e cwith an upper traveling cross-beam, f, all as indicated in Figs. 7 andll. In an opening in the center or near the center of the cross-beams Gandf is a vertical slide, H, which is a strong bar of metal ofprismatic, circular, or oval `cross-section, and which is adapted toslide up and down in said cross-beams, being held in the position towhich it may be put for the time bei ng by irietional springs g, ifdesired; but these i'rictional springs may be omitted in many cases.

To the under side of the upper eross-beam,

f, is hinged, at each side of the slide H, a linl;

or plate, h, which by a hinge-joint connects with a shorter link orplate, i, which in turn is hinged to the side ol the slide H, so thatthus the slide His connected to the upper cross-beam, j", by the jointedlinks lz.- 'i on each of its sides. Where these two links on each sideare united by the hinge-connection, they connect, either by means ol'straddling-j aws, as shown in Fig. 8, or in any other manner,with ahorizontally-sliding pusher, j, that iinds proper guidance in ahorizontal channel provided for it near the ends of the beam G, therebeing two such horizontal pushers, j j. These pushers, by outer heads,jg, engage with catches l l, that are slides adapted to travel in thechannels at the ends oi' the beam G, and to be projected beyond the endsof said beam G, as shown in Figs. 8 and ll.. Between inner shoulders, Z,ol the catches l and the outer ends of the pushers j are interposedspiral springs m, or analogous cushions. Above this travelingcontrivance G H and its appurtenances,thus far described, is affixed tothe uppart oftheleaders A A a cross brace or beam, J.

New, as far as described, the mechanism IOO operates' as follows: Thechains traveling in the direction of the arrows, which are indicated inFig. 11, will,when the catches II eugage them, as in Fig. 1l, lift thecross-beam G and all its appurtenances, and also the hammer F. Fig. 1lshows the device when in position to lift the hammer. Vhen the hammerhas been lifted so far that the upper end of the vertical slide H isbrought in contact with the under side ot' the beam J, the slide H is bysuch contact pusheddownward into the position shown by dotted lines inFig. 7, carrying with it the links h1? on each side, so as to bringtheir connecting hingejoints nearer together, and by that means thepushers j and the catches I are drawn inward and disengaged from thechains E E, thus releasing the hammer and allowing it to drop. Indropping, the hammer strikes the pile, the beam G follows it, and thedownwardly-projecting end of the vertical slide H,which is on said beamG,will strike the upper face of the hammer and will thereby be displacedvertically-that is to say, moved upwardly through the beam G, so as tobring the links h i and their connections back into the position whichis shown in Fig. Il, and by full lines in Fig. 7. the catches I I tobecome re-engaged with the chains, that will at once proceed to lift thehammer again. If at the moment the catches are pushed asunder andagainst the chains E E their points should not happen to enter into theapertures of the chain-links, the result will be that for the time beingthe pushersj will be moved outward,while the catches Iwill not becapable of moving outward. the springs m will be compressed until by thecontinued motion of the chains the apertures of the links arrive in linewith the catches I, whereupon the springs,becoming released, will propelsaid catches into the chain-links and insure the proper engagement ofthe parts.

It will thus be seen that the engine for actuating the hammer F can atall times remain in motion to simply keep the chains E traveling in thedesired direction, and that the hammer will be automatically engagedwith the chains, lifted, disengaged from them', dropped, and so on untilthe desired result has been attained. Specific attention to control theaction of the grappling devices is, therefore, not required, nor willthe operation ofthe mechanism be varied as the pile is gradually driveninto the soil, as the catches will engage the chains whenever they mayarrive beside them after the hammer has struck'the pile. In case shorterstrokes of the ham mer should be required from time to time, or onspecial occasions, a block, L, which is suspended by a rope or chain, a,from the upper cross-bar, t, of the apparatus, may be let down as far asdesired, so as to be vertically above the slide H, to push the slide Hdownward and disengage the hammer from the chains whenever the hammerhas been lifted to the required extent. Thus the strokes of the hammercan be made as long or as short as desired. In order to keep the chainsThis causes Hence properly taut, and also to have the openings in theirlinks just aligned, so that they may be engaged by both catches at thesame time, the shafts of the upper chain-wheels, a, are made adjustable.For this purpose the upper ends of the leaders AA carry each two pairsof vertical posts, o o, on which are sliding boxes p, wherein the shaftsof the chain-wheels; ay have their bearings. These sliding boXes p aresuspended adj ustably by screw-rods r, that are held by nuts 8 on anupper fixed cross-bar, 1', of the pile-driver. This adjusting mechanismis more fully indicated in Figs. l, 2, and ll. The ends ofthe travelingbeam f and projections y at the ends of the traveling beam G maystraddle theleaders for the purpose of proper guidance of the movablepart of the apparatus. Inorder to properly guide. the pile in thelateral direction, or rather to guide the position of its upper partlaterally, I have fastened to the faces of the leaders A A, by strongmetal or wooden framings u, a front beam or bar, M, which beam or barserves as a support for the screw-threaded front ends of four or, moreadjustable braces, N N and O O, which hold the pile-guides I? and It,respectively-that is to say, the pile-guide P is a bar or rod resting inthe hook-shaped or perforated rear ends of the braces N. One such braceis clearly shown in side view in Fig. 9, and this guide P can be drawnforward or backward as far as desired by turning the nuthandles t of thecross pieces or braces N N. The straight non-threaded portions of thebraces N N are further guided in straps w, that project from theleaders, as shown in Fig. 10. The front pile-guide, R, rests in the rearends of the rods O O, and may be moved backward or forward as far asdesired by turning the nut-handles .t rv of said braces O O, all ofwhich will be clearly understood by reference to Fig. IO. If the upperend ofthe pile is to be moved farther forward, the rods P It are forcedforward to that extent, and if the upper end of the pile is to be madeto lean farther backward this result will be attained by pushing therods F R backward to that extent.

The bar P may in many cases be used in front of the leaders, in whichease the bar M, with its appurtenances, will be in rear.

I claim- I. In a pile-driver, the combination of the ,leaders A A withthe endless chains E E, and mechanism, substantially as described, forsupporting and moving said chains, and with the traveling bea-m G,having laterally-pro` jecting catches I I, that are adapted to engagewith said chains, and with the hammer F, that is suspended from saidbeam G, substantially as described.

2. The traveling beam G, combined with the vertical slide H, links itt', pushers j j, catches I I, chains E d, and hammer F, for operation ina pile-driver, substantially as described. i

3. The combination of the traveling beam G, links 7L t', pushersj,catches I, and springs lOO m, with the elmius cl, :md hammer F, amd withthe upper traveling erosefbeiumf, Chains l, und Slide H, for operationsubstantially as Speeied.

The combination of the beam Gr,y having movable catches I, that areadapted to be engaged by the chain E of 2L pi1e-drver, with the verticalslide H, upper cross-bar, J, chains E, audhammer F, and with means,substantially as described, for operating the catches l'. from slide H,all arranged so that the slide H w ill be moved at the terminus 0f eachstroke to dsengage and engage the hammer, as -specifled.

THOMAS TAXGNEY.

lVitfnesses: l

JOHN C. TUNBRIDGE, JOHN M. SPEER.

